Patrick Dempsey talks about importance of the 24 Hours of Le Mans

To most of the world, Patrick Dempsey is known as an actor who cut his teeth on teen movies from the '80s, and later found popularity as a doctor on ABC's “Grey's Anatomy.” However, Dempsey is also a race car driver and team owner. In this video taken by Autoweek's Rick Dole, Dempsey talks about the 24 Hours of Le Mans and its importance to racing.